My house is on piers with a ¾” subfloor. I would like to install a floating laminate finished floor. Do I have to put down cement backerboard first, or can I just use foam underlayment under the laminate flooring? -Ralph
Hi Ralph,
Cement backerboard is mainly used under tile to provide a stable subfloor that adheres well to thin-set tile adhesive. As long as your existing subfloor is:
- Firm and in good shape.
- Well attached to the joists.
- Level, with no uneven or low spots.
Then you should be fine using just the foam underlayment on your existing subfloor before installing laminate flooring.
Good luck with your project,
Further Information
- How to Level a Subfloor (video)
- How to Install Laminate Flooring (video)
- How to Install Laminate Flooring Over a Tile Floor (article)
- Carpet and Laminate Flooring for Your Home (video)
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